When looking at Thursday’s prime-time ratings, NBC’s numbers bring to mind an apocalyptic wasteland; some smoldering ruinous city, once glamorous, where a devastating bomb has crumbled the skyline into gray ash.

Or, in NBC’s case, four bombs: Parks & Recreation, Sean Saves the World, The Michael J. Fox Show and (sorry, know you love it) Parenthood. Every show hit or tied its all-time series low rating last night. This is NBC’s lowest-performing Thursday this season. In fact, this matches NBC’s worst performing in-season Thursday in the network’s history with first-run regularly scheduled programming. These are the types of ratings that even rivals networks get bummed to see; they’re just sad.

As for the rest: Fox and The CW’s numbers are slightly inflated due to local sports preemptions (see my scoop on X Factor’s surprising renewal odds). ABC is largely even with last week. CBS’ posted across-the-board gains (except a steady Big Bang Theory), with The Millers having its best total viewership in a month. Full chart: